Sign In
The conjugate of an irrational binomial is the same number, but the sign of the irrational term is switched. Similarly, the conjugate of a complex number is the same complex number where the sign of the complex part is opposite to its original sign.
| Binomial | Conjugate | |
|---|---|---|
| Irrational conjugate | a+bsqrt(c) | a-bsqrt(c) |
| a-bsqrt(c) | a+bsqrt(c) | |
| Complex conjugate | a+bi | a-bi |
| a-bi | a+bi |